I read a lot here, and do a lot of research here. There is a wealth of feedback on just about every lens, much more so that I can get from a single reviewers perspective on any of the professional review sites.
I've been agonizing since Christmas about what lenses to get, and finally decided what to replace the lenses I bought 10 years ago for my EOS Elan 7e. Those lenses worked great on my 300d, but the shutter broke on that and I replaced it with a T2i. The lenses both just always seemed a little soft after that. (The old lenses are canon 28-105mm f/3.5-4.5 and a canon 100-300mm f/4.5-5.6). I'm still pleased with the results from my original 50mm f/1.4
I finally made up my mind and purchased a Tamron (first ever non canon...) 17-50mm f/2.8and Canon 70-200 f/4 IS. They just got here this morning and I'm pleased with the overall results.
I just wanted to say thank you to all of the active posters who share their image samples, lens feedback, and personal experiences here. For those of us who just lurk, it's a great service!



